本文实例讲述了jQuery+css实现的动态块漂移效果.分享给大家供大家参考,具体如下:
运行效果截图如下:
具体代码如下:
<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\"> <html xmlns=\"http://www.w3.org/1999/xhtml\"> <head> <title></title> <script src=\"jquery-1.7.1.min.js\" type=\"text/javascript\"></script> <script type=\"text/javascript\" > function createColor() { var color = []; for (var i = 0; i < 3; i++) { color.push(Math.round(Math.random() * 256)); } return \"rgb(\" + color.join(\",\") + \")\" } function createRect(left, top, index) { var width = Math.round(Math.random() * 150) + 10; var height = Math.round(Math.random() * 150) + 10; left = left > width ? left - width : left; top = top > height ? top - height : top; var html = []; html.push(\'<div id=\"rect_\'+index+\'\" class=\"rect shadow radius\" style=\"background:\'); html.push(createColor()); html.push(\';left:\'); html.push(left); html.push(\'px;top:\'); html.push(top); html.push(\'px;width:\'); html.push(width); html.push(\'px; height:\'); html.push(height); html.push(\'px;\"></div>\'); return html.join(\"\"); } function initRect() { var body = $(\"#body\"); var width = body.width(); var height = body.height(); var index = new Date().getTime(); body.append(createRect(Math.round(Math.random() * width), Math.round(Math.random() * height), index)); setAnimate(index, height); } function setAnimate(index, height) { var rect = $(\"#rect_\" + index); var top = parseInt(rect.position().top); var selfHeight = rect.height(); if (top > height - selfHeight) { rect.remove(); initRect(); } else { var filter = top / height; rect.css({ \"top\": (top + 5) + \"px\", \"opacity\": filter }); setTimeout(function () { setAnimate(index, height); }, 33); } } function initAllRect() { for (var i = 0; i < 20; i++) { initRect(); } } $(document).ready(function () { initAllRect(); }); </script> <style type=\"text/css\" > .rect { background:#DDDDDD; width:100px; height:100px; position:absolute; } .radius { border-radius:8px; -moz-border-radius:8px; -webkit-border-radius:8px; } .shadow { -moz-box-shadow:-5px -5px 5px #999 inset; -webkit-box-shadow:-5px -5px 5px #999 inset; box-shadow:-5px -5px 5px #999 inset; } #body { height:700px; width:100%; background:black; margin:0; } </style> </head> <body> <div id=\"body\" class=\"shadow radius\"> </div> </body> </html>
更多关于jQuery相关内容感兴趣的读者可查看本站专题:《jQuery动画与特效用法总结》及《jQuery常见经典特效汇总》
希望本文所述对大家jQuery程序设计有所帮助。
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